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Abstract #4450

Population analysis of B0 magnetic field conditions in the human heart

Yun Shang1, Sebastian Theilenberg1, Boyu Peng2, Sachin R. Jambawalikar1,2, Laura M. Schreiber3,4, and Christoph Juchem1,2
1Department of Biomedical Engineering, Columbia University, New York, NY, United States, 2Department of Radiology, Columbia University Irving Medical Center, New York, NY, United States, 3Section of Medical Physics, Department of Radiology, Mainz University Hospital, Mainz, Germany, 4Chair of Molecular and Cellular Imaging, Comprehensive Heart Failure Center (CHFC), Würzburg, Germany

Synopsis

Cardiac MRI suffers susceptibility-induced artifacts due to B0 inhomogeneity across the heart. The lack of population data in cardiac B0 conditions and the practical inability to obtain such data in large populations impedes the development of optimal cardiac B0 shim strategy. Here, we establish population-based B0 conditions from readily available CT images and simulate cardiac B0 maps of 254 CT subjects with broad demographic parameters. The results are expected to develop optimal subject- and population-specific cardiac B0 shim strategies.

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